Delta-Plus
(https://delta-plus.nl) 📸 Data Snapshot: May 29, 2026Count trust words (review, testimonial, rating, verified) against real outbound proof links (Google, Trustpilot, Clutch, G2, Yelp). Lots of trust language with zero verification links is trust theatre. Unlinked logo galleries count against it.
The site avoids standard trust theatre traps like fake badge arrays or unlinked five-star graphics. While it claims a review_count of 2 and proof_links_count of 2, these are not prominently displayed as marketing fluff. However, the lack of external verification links for the claim of 22,000 students tested prevents a perfect score in this pillar.
Proof density is high regarding inputs (degree, 40 years experience, 20 years in consultancy) and outputs (1500+ teachers trained). The primary missing element is social proof in the form of named institutional clients (e.g., specific named schools) which would move the site from high-density assertions to verified evidence.
Trust & Proof is read by weighing trust language against real verification. Below is the page-by-page tally of review mentions and external proof links, then the schema markup that may (or may not) declare verifiable ratings and identity proof.
🛡️ Trust Signals — reviews, proof links, trust-theatre check
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 2 | 2 |
| /over-delta-plus/ | 2 | 2 |
| /contact/ | 2 | 2 |
| /tr-2/ | 2 | 2 |
🔗 Identity & Technical Layer — schema JSON-LD: declared ratings, reviews & identity proof
Homepage schema
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://www.delta-plus.nl/",
"url": "https://www.delta-plus.nl/",
"name": "Delta-Plus Diensten - Delta-Plus",
"isPartOf": {
"@id": "https://www.delta-plus.nl/#website"
},
"primaryImageOfPage": {
"@id": "https://www.delta-plus.nl/#primaryimage"
},
"image": {
"@id": "https://www.delta-plus.nl/#primaryimage"
},
"thumbnailUrl": "https://www.delta-plus.nl/wp-content/uploads/2017/12/FW4.jpg",
"datePublished": "2016-04-29T06:02:49+00:00",
"dateModified": "2022-04-06T13:58:05+00:00",
"description": "Ons doel: scholen ondersteunen zodat leerlingen voorbereidt zijn op de maatschappij van morgen. Zorg dat je als docent zelf ook digitaal vaardig bent.",
"breadcrumb": {
"@id": "https://www.delta-plus.nl/#breadcrumb"
},
"inLanguage": "nl",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.delta-plus.nl/"
]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "nl",
"@id": "https://www.delta-plus.nl/#primaryimage",
"url": "https://www.delta-plus.nl/wp-content/uploads/2017/12/FW4.jpg",
"contentUrl": "https://www.delta-plus.nl/wp-content/uploads/2017/12/FW4.jpg"
},
{
"@type": "BreadcrumbList",
"@id": "https://www.delta-plus.nl/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home"
}
]
},
{
"@type": "WebSite",
"@id": "https://www.delta-plus.nl/#website",
"url": "https://www.delta-plus.nl/",
"name": "Delta-Plus",
"description": "Training & Advies",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.delta-plus.nl/?s={search_term_string}"
},
"query-input": "required name=search_term_string"
}
],
"inLanguage": "nl"
}
]
}
/over-delta-plus/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://www.delta-plus.nl/over-delta-plus/",
"url": "https://www.delta-plus.nl/over-delta-plus/",
"name": "Over Delta-Plus",
"isPartOf": {
"@id": "https://www.delta-plus.nl/#website"
},
"primaryImageOfPage": {
"@id": "https://www.delta-plus.nl/over-delta-plus/#primaryimage"
},
"image": {
"@id": "https://www.delta-plus.nl/over-delta-plus/#primaryimage"
},
"thumbnailUrl": "https://ntst.delta-plus.nl/wp-content/uploads/2015/01/D-Logo_small.png",
"datePublished": "2015-01-21T15:32:53+00:00",
"dateModified": "2017-12-13T13:44:23+00:00",
"description": "Activiteiten, Onderwerpen en doelgroepen van Delta-Plus. Hier vindt u ook de ontstaansgeschiedenis van Delta-Plus en een korte biografie van Freek Weeda.",
"breadcrumb": {
"@id": "https://www.delta-plus.nl/over-delta-plus/#breadcrumb"
},
"inLanguage": "nl",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.delta-plus.nl/over-delta-plus/"
]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "nl",
"@id": "https://www.delta-plus.nl/over-delta-plus/#primaryimage",
"url": "https://ntst.delta-plus.nl/wp-content/uploads/2015/01/D-Logo_small.png",
"contentUrl": "https://ntst.delta-plus.nl/wp-content/uploads/2015/01/D-Logo_small.png",
"width": 150,
"height": 81
},
{
"@type": "BreadcrumbList",
"@id": "https://www.delta-plus.nl/over-delta-plus/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://www.delta-plus.nl/"
},
{
"@type": "ListItem",
"position": 2,
"name": "Over Delta-Plus"
}
]
},
{
"@type": "WebSite",
"@id": "https://www.delta-plus.nl/#website",
"url": "https://www.delta-plus.nl/",
"name": "Delta-Plus",
"description": "Training & Advies",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.delta-plus.nl/?s={search_term_string}"
},
"query-input": "required name=search_term_string"
}
],
"inLanguage": "nl"
}
]
}
/contact/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://www.delta-plus.nl/contact/",
"url": "https://www.delta-plus.nl/contact/",
"name": "Contact info en formulier",
"isPartOf": {
"@id": "https://www.delta-plus.nl/#website"
},
"primaryImageOfPage": {
"@id": "https://www.delta-plus.nl/contact/#primaryimage"
},
"image": {
"@id": "https://www.delta-plus.nl/contact/#primaryimage"
},
"thumbnailUrl": "https://ntst.delta-plus.nl/wp-content/uploads/2019/05/D-qrcode-vcard-2019-05.png",
"datePublished": "2015-01-20T19:24:37+00:00",
"dateModified": "2021-08-09T14:11:33+00:00",
"description": "Rechtstreeks Contact via telefoon of email voor informatie of offertes",
"breadcrumb": {
"@id": "https://www.delta-plus.nl/contact/#breadcrumb"
},
"inLanguage": "nl",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.delta-plus.nl/contact/"
]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "nl",
"@id": "https://www.delta-plus.nl/contact/#primaryimage",
"url": "https://ntst.delta-plus.nl/wp-content/uploads/2019/05/D-qrcode-vcard-2019-05.png",
"contentUrl": "https://ntst.delta-plus.nl/wp-content/uploads/2019/05/D-qrcode-vcard-2019-05.png",
"width": 456,
"height": 456
},
{
"@type": "BreadcrumbList",
"@id": "https://www.delta-plus.nl/contact/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://www.delta-plus.nl/"
},
{
"@type": "ListItem",
"position": 2,
"name": "Contact"
}
]
},
{
"@type": "WebSite",
"@id": "https://www.delta-plus.nl/#website",
"url": "https://www.delta-plus.nl/",
"name": "Delta-Plus",
"description": "Training & Advies",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.delta-plus.nl/?s={search_term_string}"
},
"query-input": "required name=search_term_string"
}
],
"inLanguage": "nl"
}
]
}
/tr-2/
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://www.delta-plus.nl/tr-2/",
"url": "https://www.delta-plus.nl/tr-2/",
"name": "Taal en Rekenen - Delta-Plus",
"isPartOf": {
"@id": "https://www.delta-plus.nl/#website"
},
"primaryImageOfPage": {
"@id": "https://www.delta-plus.nl/tr-2/#primaryimage"
},
"image": {
"@id": "https://www.delta-plus.nl/tr-2/#primaryimage"
},
"thumbnailUrl": "https://ntst.delta-plus.nl/wp-content/uploads/2015/05/IMG_0572-300x224.jpg",
"datePublished": "2017-11-08T15:56:20+00:00",
"dateModified": "2021-08-11T14:32:20+00:00",
"description": "Taal en rekenen: advies en trainingen. Ondersteuning van het beleid en van de verwezenlijking van vernieuwingen.",
"breadcrumb": {
"@id": "https://www.delta-plus.nl/tr-2/#breadcrumb"
},
"inLanguage": "nl",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
"https://www.delta-plus.nl/tr-2/"
]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "nl",
"@id": "https://www.delta-plus.nl/tr-2/#primaryimage",
"url": "https://ntst.delta-plus.nl/wp-content/uploads/2015/05/IMG_0572.jpg",
"contentUrl": "https://ntst.delta-plus.nl/wp-content/uploads/2015/05/IMG_0572.jpg",
"width": 2592,
"height": 1936
},
{
"@type": "BreadcrumbList",
"@id": "https://www.delta-plus.nl/tr-2/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://www.delta-plus.nl/"
},
{
"@type": "ListItem",
"position": 2,
"name": "Taal en Rekenen"
}
]
},
{
"@type": "WebSite",
"@id": "https://www.delta-plus.nl/#website",
"url": "https://www.delta-plus.nl/",
"name": "Delta-Plus",
"description": "Training & Advies",
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.delta-plus.nl/?s={search_term_string}"
},
"query-input": "required name=search_term_string"
}
],
"inLanguage": "nl"
}
]
}
This page presents a snapshot of public data from Delta-Plus, captured on May 29, 2026, to show how machine logic reads Trust & Proof signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to Delta-Plus: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://delta-plus.nl to view the most current version of its content and see directly what this company is about and what it offers.